Question

Помогите пожалуйста с математикой, я ее не понимаю просто, да и болела, ничего не знаю :')

Answer 1

1) Сократить.

$\frac{18}{36} = \frac{1}{2}\\\\\frac{25}{125} = \frac{1}{5}\\\\\frac{64}{256} = \frac{1}{4}\\\\\frac{6}{16} =\frac{3}{8}\\\\\frac{11}{77} = \frac{1}{7}$

2) Привести к общему знаменателю.

$\frac{1}{6} + \frac{1}{2} = \frac{1+3}{6} = \frac{4}{6} = \frac{2}{3}\\\\\frac{8}{13} + \frac{1}{3} = \frac{3*8+13}{39} = \frac{37}{39}\\\\\frac{1}{7} + \frac{1}{9} = \frac{9+7}{63} = \frac{16}{63}\\\\\frac{1}{5} + \frac{1}{6} = \frac{6+5}{30} = \frac{11}{30}\\\\\frac{6}{7} + \frac{9}{10} = \frac{6*10+9*7}{70} = \frac{60+63}{70} = \frac{123}{70} = 1\frac{53}{70}$

3) Сравнить.

$\frac{1}{2} > \frac{1}{3} \\\\\frac{1}{2} = \frac{35}{70}\\\\\frac{1}{6} < \frac{2}{3}\\\\\frac{1}{100} > \frac{1}{101}\\\\\frac{43}{43} > \frac{42}{43}$